Cement-brick machine.



G. J. BUGK'EYE a. J. BUERLEIN. CEMENT BRICK MACHINE.

Patented Apr. 12, 1910.

APPLICATION FILED PEB.27,1908.

2 SHEETS-SHEET 1.

G. J. BUCKEYB & J. BUERLEIN.

CEMENT BRICK MACHINE.

APPLICATION FILED PEB. 27. 1110s.

954,41 8. Patented Apr. 12, 1910.

2 SHEETS-SHEET 2.

* the upper and lower beams, in a manner to GEORGE J; BUCKEYE AND JACOB BUERLEIN, OF JOLIET, ILLINOIS.

CEMENT-BRICK MACHINE.

Specification of Letters Patent.

Application led February 27, 1908.

Patented Apr. 12, 1910.

Serial No. 418,018.

To all whom it may concern:

Be it known that we, GEORGE J. Bucknrn and JACOB BUERLEIN, citizens of the United States, residing at Joliet, in the county of vWill and State of Illinois, have invented certain new and useful Improvements in Cement-Brick Machines, of which the following is a specification.

This invention relates to apparatus employed in the production of concrete bricks and refers especially to n'iolding machines operated by hydraulic pressure.

The more important objects of the improvements which form the subject matter of this application are to provide means for elevating the mold-box in connection with, or independently of the movement of the bed plate, and to apply the lifting force in such a manner that the box is held level at all times, thus avoiding any tendency to bind upon the guide ways; to furnish a conveyer for handling the plastic material and depositing it in the molds, to provide means for adjusting the height of the track upon which the conveyer travels, in order to accommodate mold-boxes of different heights, and to construct a frame of simple design that will combine the requisite strength and rigidity to withstand the severe stress to which hydraulic apparatus of this class are subjected and to furnish a mechanism and supporting structure that can be readily and economically constructed.

Ve accomplish the desired results by the employment of the apparatus illustrated in the accompanying drawing which forms a part of this application, and in which Figure l is a side elevation of the complete apparatus; F ig. 2 is a top plan view of the mold; Fig. 3 is a rear elevation of the machine with the car removed, and Fig. 4 is a top plan view of the car and supporting brackets.

Referring to the details of the drawings the framework of the machine is composed of strong I-beams 5, 6, which are supported by vertical strain rods 7 arranged in a rectangle, and tie plates 8, 9. The ends of the strain rods are threaded and furnished with nuts and integrally formed disk-shaped bearing ends 11, thus affording a strong and rigid construction well calculated to withstand the immense pressure exerted by the powerful hydraulic press installed between be described. The lower beams 5 are confined between the tie-plates S and 9 and the parts secured by clamping collars 12, which are halved, the sections being secured by bolts 13. Similar collars 14 support the upper beams (3, bearing plates 15 being interposed between the beams and. adjacent nuts.

Between the tie plates t) is a transverse plate 1G, its ends supported upon the beams 5. This plate is cast integral. with a hydraulic cylinder IT, provided with a supply pipe 18. This cylinder is fitted with a plunger 18 which has a bearing in a easting 1S) formed integral with a bed-plate 2O provided with boxes 2l adapted to slide upon the strain rods 7. Above the pressure plate Q0 is located a mold box Q2 which consists of a rectangular framework composed of comparatively thick side members 23, ends 23, and partitions Q4, to withstand the heavy pressure, and the sections or compartments thus formed are again subdivided by lighter partition plates Q5 producing a series of rectangular cells 2G. Beneath each secw tion is placed a pallet board 2G and above this mold box are located series of dies 2T formed integral with a supporting web 28 fixed to longitudinal I-beams 2S), which depend from the upper I-beams t5. The matrix or mold 22 may be 'aised and lowered by the action of the main press, but it also has an independent movement through the action of auxiliary presses located at opposite ends of the framework. Each auxiliary press consists of a cylinder 30 cast integral with a transverse tieplate 9, and furnished with a piston 3l, having a laterally extending head 31, upon which projections 32 of the matrix 22 rest, and are fastened thereto. Each of said auxiliary cylinders has the usual supply pipe 33.

To provide means for conveniently and rapidly filling the mold, a convcyer, or car 34 is arranged upon wheels 35, which travel upon the upper faces of bracket arms adjustably attached to the posts 7 by sectional collars 37, the parts of the collars being held together by clamping screws or bolts 3S. The said bracket arms 3G are furnished with marginal flanges 39, which prevent the wheels 35 from leaving the track. and said arms are turned upwardly in the rear to form stops 40. By means of the collars 3T the brackets are adjusted upon the rods 7 at such a height that the track for the wheels will be on a level with the top face of the mold-box 2Q when the parts are in operative position, .permitting the car to be easily rolled from the brackets upon the mold box, the wheels traveling upon the end members 23a, provision being made for locating the bracket arms in alinement therewith by the offsets 4l, to which the slidable collars 37 are attached. The car 34 is furnished with a slidable bottom 42, which can be drawn out to allow tlie contents to fall into the inold-box when the car is rolled thereupon. A very desirable feature of the bracket construction is its vertical adjustability as this permits of the use of mold-boxes' of different heights.

immediately abovethe car body 34 is located a rectangular frame 43 having three sides thus being open on thefront, said frame being supported by bent arms 44, secured to the main bracket 36 by bolts 45, which pass through slots 46 in said arms 44. The frame 43 is of the saine dimensions laterally as the car body so that the planes of the car sides and those of the frame; coincide. The frame is adjusted by means of the bolts 45 so that its'lower margins will just clear the car as it is moved underneath. This frame serves as a hopper to facilitate filling the car, and when the car is moved on to the mold boxy the rear side 43a` of the frame will actl asa leveler to remove the surplus material and thus insure the deposit of a proper quantity in the mold.

The methodof operatingthe machine is as follows: The various movable parts beingv in their initial positions as shownfin the drawings the plastic materialil is placed within the car, the latterv havingra capacity adapted to the requirements of the Amold in use. lV hen the cai is properly loadedHit is moved from the brackets upon the upper= face of the mold andfwhen in position above the cells the bottom 42 is removed allowing the material to fall directly into the cells 26. The empty car `is thenfrestored'to its initial position upon the bracket-s 36'and the central or main press then-operated which has the effect of `raising the bed plate and superposed mold until the dies27 .enterE the cells 26, the action of said press continuing' l-et boards 26a-iipon which liethe finished bricks, which may be thenV carried awayby lifting the said boards from the 'face of the plate 20. The :water is then" removed from the cylinder 30 and the linold 32 allowed to descend to its first position, al new setof pallet boards having been supplied. The malmounted on said frame, and a main hydraulic press adapted to operate said bed plate, of a matrix mounted to slide on said frame above the plate, a pair of auxiliary hydraulic cylinders, arranged. upon opposite sidesY of said main press, pistons in said cyliir ders project-ing upward and adapted to engage projections on said matrix, fixed dies adapted to project through said matrix, an adjustable conveyer supported on said frame, and an adjustable leveling device arranged above said conveyer.

2. In a molding machine, the combination with a suitable frame, a bed-plate slidably mounted thereon, and a press arranged belowsaid plate, of a. rectangular matrix mounted Lto slide on said frame, projections on said matrix, a pair of hydraulic cylinders arranged upon opposite sides of said main press, upwardly projecting pistons in said cylinders, transverse heads on said pistons engaging the projections on the matrix, fixed dies arranged above the matrix and adapted to project vtherethrough when the brackets and provided with a removable bottom, and a hopper yframe adjustably arranged'above said car and adapted to serve as a leveler when the car is moved.

3. In a molding machine, rthe combination with a suitable frame, a bed plate slidably mounted thereon, and a press arranged beilow said plate, of a` rectangular matrix -tons in said cylinders engaging said matrix,

fixed dies arranged above the inaitrix `and :adapted `to project therethrough, brackets adjustably mounted on said frame adjacent to t-he bed-plate,'a car inount-ed on wheels arranged to travel on said brackets, a removable bottom for the car, a hopper frame open upon one side, arms adjustably secured to said brackets and supporting said 'hopper frame,l said hopper frame being also l adapted to serve as a leveler for the contents of the car when the latter is moved. y

In testimony whereof we aix ourl signatures in the presence'of two witnesses. l

GEORGE J. BUCKEYE. JACOB BUERLEIN.

Vitnesses:

L. M. BLAIR, GEORGE BARNARD.' 

